- the Proof of Islam
- his title among Muslims, for defending the faith with proof
- Tus
- his Khurasan city, where he was born and where he died
- the Shafi''i
- the legal school he learned and taught at the Nizamiyya
- Sufism
- the spiritual path he chose after his crisis of certainty
- the Incoherence of the Philosophers
- his famous critique of the philosophers, which Ibn Rushd later answered
- the Revival of the Religious Sciences
- his great encyclopaedia that renewed the religious sciences from fiqh to Sufism
- Nizam al-Mulk
- the Seljuk vizier who appointed him to the Nizamiyya in Baghdad
- the Nizamiyya
- his college, which became the model of higher Islamic education for centuries
- Nishapur
- the Khurasan city where he first received learning from its scholars
- the seclusion
- his years of seclusion between Syria and the Hijaz, after he left teaching
- Algazel
- the Latin name medieval Europe knew him by in its books
- 1111
- the year of his death in Tus — his birthplace and home
